During the Devonian period of Gondwanaland what were the two organisms that thrived?

A)

algae and Trilobites

B)

land invertebrates and dinosaurs

C)

conifers and early mammals

D)

angiosperms and humans

E)

marine invertebrates and land plants

The earth tilt causes Years Seasons day and night time zone

Updates are especially important for anti-virus programs because without updates these programs will not protect your computer from the newest viruses.

A study of the human gut performed in 1982 used various types of plates under different growth conditions to describe and enumerate the microbes in the human gut.

A food-chain of a rice field ecosystem is shown. Snake ↑ Field rat ↑ Rice Plant Field rats feed on rice grains. How would the snake population of a rice field likely be affected in the year following a serious drought? Explain your answer.

Which is a genetic counselor least likely to recommend for a client who has been unable to become pregnant? A. vision testing B. fertility testing C. blood analysis D. family history analysis

What are the chances of having a child with hitchhiker's thumb if both parents are hybrids? Show work

A patient does not have a family history of hypertension. This means which of the following? She will not get hypertension, even if she is a heavy smoker. She will not get hypertension, regardless of her red blood cell count.

How long does cavity filling numbness last?

Why does the article refer to pesticide resistance as artificial selection instead of natural selection?

Is 28.5 cm tall qualitative or quantitative data